Replace is_user variable with mmu_idx in softmmu core,

  allowing support of more than 2 mmu access modes.
Add backward compatibility is_user variable in targets code when needed.
Implement per target cpu_mmu_index function, avoiding duplicated code
  and #ifdef TARGET_xxx in softmmu core functions.
Implement per target mmu modes definitions. As an example, add PowerPC
  hypervisor mode definition and Alpha executive and kernel modes definitions.
Optimize PowerPC case, precomputing mmu_idx when MSR register changes
  and using the same definition in code translation code.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3384 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 53 insertions, 5 deletions

diff --git a/softmmu_exec.h b/softmmu_exec.h
index 3b789eeb7..b6e484918 100644
--- a/softmmu_exec.h
+++ b/softmmu_exec.h
@@ -1,10 +1,16 @@
 /* Common softmmu definitions and inline routines.  */
 
-#define ldul_user ldl_user
-#define ldul_kernel ldl_kernel
+/* XXX: find something cleaner.
+ * Furthermore, this is false for 64 bits targets
+ */
+#define ldul_user       ldl_user
+#define ldul_kernel     ldl_kernel
+#define ldul_hypv       ldl_hypv
+#define ldul_executive  ldl_executive
+#define ldul_supervisor ldl_supervisor
 
 #define ACCESS_TYPE 0
-#define MEMSUFFIX _kernel
+#define MEMSUFFIX MMU_MODE0_SUFFIX
 #define DATA_SIZE 1
 #include "softmmu_header.h"
 
@@ -20,7 +26,7 @@
 #undef MEMSUFFIX
 
 #define ACCESS_TYPE 1
-#define MEMSUFFIX _user
+#define MEMSUFFIX MMU_MODE1_SUFFIX
 #define DATA_SIZE 1
 #include "softmmu_header.h"
 
@@ -35,8 +41,50 @@
 #undef ACCESS_TYPE
 #undef MEMSUFFIX
 
-/* these access are slower, they must be as rare as possible */
+#if (NB_MMU_MODES >= 3)
+
 #define ACCESS_TYPE 2
+#define MEMSUFFIX MMU_MODE2_SUFFIX
+#define DATA_SIZE 1
+#include "softmmu_header.h"
+
+#define DATA_SIZE 2
+#include "softmmu_header.h"
+
+#define DATA_SIZE 4
+#include "softmmu_header.h"
+
+#define DATA_SIZE 8
+#include "softmmu_header.h"
+#undef ACCESS_TYPE
+#undef MEMSUFFIX
+
+#if (NB_MMU_MODES >= 4)
+
+#define ACCESS_TYPE 3
+#define MEMSUFFIX MMU_MODE3_SUFFIX
+#define DATA_SIZE 1
+#include "softmmu_header.h"
+
+#define DATA_SIZE 2
+#include "softmmu_header.h"
+
+#define DATA_SIZE 4
+#include "softmmu_header.h"
+
+#define DATA_SIZE 8
+#include "softmmu_header.h"
+#undef ACCESS_TYPE
+#undef MEMSUFFIX
+
+#if (NB_MMU_MODES > 4)
+#error "NB_MMU_MODES > 4 is not supported for now"
+#endif /* (NB_MMU_MODES > 4) */
+#endif /* (NB_MMU_MODES == 4) */
+#endif /* (NB_MMU_MODES >= 3) */
+
+/* these access are slower, they must be as rare as possible */
+#define ACCESS_TYPE (NB_MMU_MODES)
 #define MEMSUFFIX _data
 #define DATA_SIZE 1
 #include "softmmu_header.h"